Once you know the selling price and direct costs of each product or service unit you sell, you can calculate your contribution margin in dollars per unit.

一旦你知道了产品或服务的零售价和直接成本，你就可以计算出单位产品边际收益。

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This is the amount of money you get over and above your direct costs for each unit you sell. (you can define your unit as either a product or hour of service.)

也就是超出直接成本的部分(你可以把单位设定为一个产品或者一小时的服务)。

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"Coal marketing office issued a" Circular on further strengthening product coal quality management notice ", defined the responsibilities of each unit personnel."

煤质运销处下发了《关于进一步加强商品煤质量管理的通知》，明确了各单位人员的职责。

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Alvarez is banking that fewer, more robust partnerships will yield economies of scale: As each distributor carries more product into stores, the overall per-unit cost of distribution will drop.

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